# HG changeset patch
# User martin
# Date 1585689344 25200
#      Tue Mar 31 14:15:44 2020 -0700
# Node ID 7abfcec00e7d0a5e21fb4115d8d3cbc6e079bdb2
# Parent  cc649b043bb34e6b2a3d5ceb2d0a32735ab60281
8186780: clang fastdebug assertion failure in os_linux_x86:os::verify_stack_alignment()
Reviewed-by: jiangli

diff --git a/src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp b/src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp
--- a/src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp
+++ b/src/hotspot/os_cpu/linux_x86/os_linux_x86.cpp
@@ -98,13 +98,8 @@
   void *esp;
   __asm__("mov %%" SPELL_REG_SP ", %0":"=r"(esp));
   return (address) ((char*)esp + sizeof(long)*2);
-#elif defined(__clang__)
-  void* esp;
-  __asm__ __volatile__ ("mov %%" SPELL_REG_SP ", %0":"=r"(esp):);
-  return (address) esp;
 #else
-  register void *esp __asm__ (SPELL_REG_SP);
-  return (address) esp;
+  return (address)__builtin_frame_address(0);
 #endif
 }